Science

They are: Basal tears (protecting and nourishing cornea) Reflex tears (glands' reaction to irritating compounds, like smoke) Emotional tears (produced in response to various emotional states)

Despite various studies, no evidence to the contrary has yet been announced.

NASA responded to Kennedy’s famous speech, known as “We Choose the Moon,” with the Apollo program (1960-1972).

A distinctive feature of fungi is the cell walls built of chitin. The fungus cell can be mononuclear ...

The average distance from the Sun is 150 million km and ranges from 147.09 million km at the periapsis to 152.09 million km at the apsis.

The Sámi people claimed that creating a song about the aurora borealis is dangerous and threatens to draw polar light on themselves, which bode inevitable death.

It can produce static electricity when negatively charged by applying friction. Because of that, ancient Greeks named amber “elektron,” which became the basis for the word electricity.

The ISS program evolved from the 1980s Space Station Freedom program. The first long-term residents ...